生产、安装聚氯乙烯门系列，摆门，速动门。
Manufacturers and installers of PVC door systems, swing doors, fast acting doors.
本文介绍了新开发成功的客车电动外摆门驱动控制系统。
The paper presents a driving and controlling system of the electric door swung outside for bus.
介绍了外端双扇摆门的原密封结构和改进后的密封结构，对比分析了硅橡胶条、尼龙毛刷和羊毛毛刷的密封性能。
The original seal structure and the improved seal structure of the double-leaf swing door at the outside end are described.
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